Tailored Carbide Morphologies: Materials by Design for Creep Resistance at Ultra-High Temperatures

Abstract

Transition metal carbide (TMC) powders including TaC and ZrC with less than 300 nmin particle size have been successfully synthesized by a unique solvothermal approach. We have effectively modified the particle morphology of the TMC particles from round/irregular shapes to polyhedrons enclosed by {111} and {100} surfaces. We also report the formation of perfect/truncated nanocubes through the dual-effects of carbide diluent and transition metal doping. The TaC:Ni system demonstrated ~80 of morphological modification among the particles evaluated.

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Document Details

Document Type
Technical Report
Publication Date
Jun 28, 2017
Accession Number
AD1059914

Entities

People

  • Olivia A Graeve

Organizations

  • University of California, San Diego

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Combustion
  • Crystal Structure
  • Crystals
  • Electron Microscopy
  • Energy
  • Free Energy
  • High Temperature
  • Materials
  • Metals
  • Nanoparticles
  • Oxidation Resistance
  • Particle Size
  • Particles
  • Powders
  • Transition Metals
  • Zirconium

Fields of Study

  • Materials science

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Powder metallurgy of Titanium alloys.